In 2018, King County, WA had a population of 2.23M people with a median age of 36.8 and a median household income of $95,009. Between 2017 and 2018 the population of King County, WA grew from 2.19M to 2.23M, a 2.03% increase and its median household income grew from $89,675 to $95,009, a 5.95% increase.
The 5 largest ethnic groups in King County, WA are White (Non-Hispanic) (58.7%), Asian (Non-Hispanic) (17.8%), Black or African American (Non-Hispanic) (6.58%), Two+ (Non-Hispanic) (5.61%), and White (Hispanic) (4.41%). 28.1% of the households in King County, WA speak a non-English language at home as their primary language, and 87.8% of the residents in King County, WA are U.S. citizens.
In 2018, the median property value in King County, WA was $635,200, and the homeownership rate was 56%. Most people in King County, WA drove alone to work, and the average commute time was 28.1 minutes. The average car ownership in King County, WA was 2 cars per household.